Been looking at prefab shops and I think Ive found the one Im going to buy.Its a 12x18 and will be delivered and set up for me. Question is what can be done before or after set up to keep the critters out?
 Its all wood and seems to be sealed up pretty tight but since itll be setting next to the woodline behind the house I figure mice might be a problem.So is there anything I can do to keep the critters out?